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 1 
 on: Today at 08:47:40 PM 
Started by Russ Lister - Last post by THB
Nice looking project and would be great for rubber if you go that way
Tim

 2 
 on: Today at 08:42:27 PM 
Started by Pit - Last post by graham_mca
This stand has been a fun little project. And once I set a CatJet on it I was kind of surprised at just what a difference it made. Suddenly, instead of being tossed on a shelf, I was actually displaying a favourite model!
 

 3 
 on: Today at 08:29:49 PM 
Started by stupid - Last post by graham_mca
This is a great looking P59 Bob. I'm really interested in hearing how the little beauty flies Smiley Thanks for the detailed build thread and the good ideas you've shared.

 4 
 on: Today at 08:26:59 PM 
Started by cglynn - Last post by flydean1
You can fly it in Classic Towline, a NFFS event.

 5 
 on: Today at 08:12:56 PM 
Started by Russ Lister - Last post by dosco
I'm in  Smiley

+1


 6 
 on: Today at 07:31:31 PM 
Started by aerotrope - Last post by aerotrope
Fin and rudder .6 gm ready to cover.

 7 
 on: Today at 07:08:52 PM 
Started by Mark Braunlich - Last post by AAdamisin
French Coupe build coming along.  Elyea's coupe right behind.  Won't be long now.

Archie Adamisin
Burlington, KY

 8 
 on: Today at 06:39:37 PM 
Started by Russ Lister - Last post by Russ Lister
Thanks Jon ... I'm looking to ape some of the aerodynamics from the full size Reggiane wing, so it will be interesting to hear what you think. Saying that, the Re 2005 wing was slightly different but I will go with the earlier wing.
The wing uses both 'aerodynamic and structural' washout I read somewhere.
I like the sound of the slightly reflexed Clark YH that was used as a basis for the wing ... it might be useful for a model?

 9 
 on: Today at 06:29:59 PM 
Started by Russ Lister - Last post by Russ Lister
Current state of play with the drawing .... not sure if it will be rubber or electric yet, though if I can keep the weight down I would like it to be rubber. All drawn in vectors using a PDF underlay.
The structure is aimed at being stiff when built with light balsa and minimum starved horse effect.

 10 
 on: Today at 06:28:01 PM 
Started by Russ Lister - Last post by Yak 52
I'm in  Smiley

 11 
 on: Today at 06:09:02 PM 
Started by Russ Lister - Last post by Russ Lister
I have noticed lately that some of the leading lights have got more than a few projects on the go ... using this as an excuse I am going to start yet another build.
The difference being that they will finish their models and to a higher standard!
I can't really finish the completed bones i have got until the atmosphere both warms and dries up.
The current Aeroplane magazine has a data file on the Reggiane fighters .... it gave me that extra kick to start a subject that I have fancied for a long while.
The Re 2005 has a far slimmer fuselage than the Re 2000 that I have previously built.
I'm already a fair way into drawing up the plans .... I feel it has been too long since I have built one of my own designs.

 12 
 on: Today at 05:52:18 PM 
Started by Tim Hooper - Last post by Russ Lister
The Answer looks great  Smiley

I've been tempted by it in the past ... particularly the scaled down version by David Deadman (still owned by Graham or Richard?)

 13 
 on: Today at 04:45:51 PM 
Started by Tim Hooper - Last post by Tim Hooper
I've so nearly bought the kit and now I'm even more tempted for diesel power. Look forward to seeing more of your build

The Cambrian kit is the smaller 44" original.  I'm guessing that a .75 diesel would be just right!

 14 
 on: Today at 03:54:51 PM 
Started by TheLurker - Last post by TheLurker
Mr. Simons on planform.  Chapter 6 sect. 6.3

"The Rhonadler ... It had a strongly tapered wing which was efficient at low speed, but required strong washout and a change of wing profile at the tips to prevent dangerous tip stalling and spinning. At moderately high airspeeds the tips were at negative angles of attack and 'lifted' downwards, bending the wing down and ruining penetration."  Mr. Simons also notes that the wing as built was efficient, but only at one, designed, airspeed.

As far as this build goes.  Working on the wing centre section for the last couple of days.  Main structure is quickly built, but the infill over the "hump" needed some thought.  Usually with infill I rough fill and the sand down when all panels in place, but with this one the hump needs to be sanded to shape as you go to allow for the fitting of the horizontal panels on the inner section.  I honestly thought I'd get the hump & inner panel done this evening.  Will I ever learn? Smiley

The outer bays of the centre section won't be sheeted until the wing is assembled becos clamping the sections together.

 15 
 on: Today at 03:46:27 PM 
Started by Kevin M - Last post by atesus
Excellent recommendations from everyone. I will add a couple more of mine. You may consider slimming down the fuselage a little and also using 1/32" ribs and/or lighter wood in the outer wing panels. I suspect the weight reduction may not be significant but since you're literally working on shaving grams so everything helps Smiley. I do agree with the strategy of reducing the weight wherever it can be done and then moving the wing to balance the plane at the end. My P-30s have a movable pylon, which I glue in place once I'm satisfied with the performance. Not sure what kind of DT you'll use but if you're going to use a viscous timer, or an electronic timer, that is a good bit of weight which you may shift around for optimizing the wing location.

Handsome design, I like it a lot.
--Ates

 16 
 on: Today at 03:33:15 PM 
Started by Kevin M - Last post by DerekMc
Quote
...and use Ezewind lube (Aeromodeller) for extra duration.

Will I get more duration the more I use? May need several grams of it.....

AMA P30 rules state the lubed motor must weigh 10 grams or less so you don't want to use lot's of lube. My motors are weighed to 9.7 grams and then lubed.  They end up up around 9.95 grams.  I use 10k -15k wt. silicone lubricant. 

The ezewind lube looks interesting and I see there is a write up on it in the latest Aeromodeller.

 17 
 on: Today at 03:32:03 PM 
Started by CatMan - Last post by CatMan
Laminate it maybe?

That is actually 'Attempt 1' that I set up at lunch before I headed back to work. I have some 1/16" sheets that I got at Hobby Lobby that are actually pretty thin or thinner than they should be. After lunch I'll see how that works. The curve is really very gentle so it shouldn't be too bad.

 18 
 on: Today at 03:28:45 PM 
Started by CatMan - Last post by Kevin M
Laminate it maybe?

 19 
 on: Today at 03:21:54 PM 
Started by Kevin M - Last post by Kevin M
Quote
...and use Ezewind lube (Aeromodeller) for extra duration.

Will I get more duration the more I use? May need several grams of it.....

 20 
 on: Today at 02:52:07 PM 
Started by Tim Hooper - Last post by Squirrelnet
The Answer is a beautiful model, a Mills 1.3 powered one even nicer to my oily mind

I have the original article from Air Age Gas Models written by Gordon Murray and had plans to build one for a Sparkie ...maybe a Bantam 19 if built light ? or maybe an O&R 23 . Not sure where I could even fly a Sparkie powered FF Model these days

I've so nearly bought the kit and now I'm even more tempted for diesel power. Look forward to seeing more of your build

 21 
 on: Today at 02:50:44 PM 
Started by CatMan - Last post by CatMan


I put this one on pause for a couple months and am ready to tackle it now.....I think. I have a couple ideas, but what is the best way to get that curved 'backbone' or 'spine' on the top? What is the best way to bend balsa? I'm not sure I want to try and cut out that long of a piece and keep it looking nice.

 22 
 on: Today at 02:33:50 PM 
Started by Kevin M - Last post by billdennis747
...and use Ezewind lube (Aeromodeller) for extra duration.

 23 
 on: Today at 02:31:30 PM 
Started by Kevin M - Last post by DerekMc
If I remember correctly Stan B's record setting P30 wasn't that close to minimum weight.  Something to think about for sure.  And it used Boron to strengthen the stab.  I'd include Clint Brooks with Stan and Don. 

 24 
 on: Today at 02:09:18 PM 
Started by Kevin M - Last post by calgoddard
Thank you for the complement Kevin.

Here is a picture of the orange Chinese prop. It has a larger hub bore than the Peck prop and may need to be bushed. No alterations to the prop are allowed under the P-30 rules except bushing, adding weight to one blade for balancing, and removing flashing.

The approximately 9 1/2-inch diameter orange Chinese prop costs $2 (US) from Volare Products.

The Gizmo Geezer prop is re-pitched to a higher pitch so that its P/D is 1.25 I believe.  Long ago the powers that be ruled this alteration to be legal under the P-30 rules.

I used Peck style P-30 props on my lightweight P-30 models because they had the lower pitch I wanted for the thinner (longer) 6 x 3/32 and 10 x 1/16 rubber motors.

The green prop was super light as I recall so I used it.  

I have tried pretty much every legal P-30 prop. I have read the detailed technical analysis in FFQ re the prop choices.  I think I have eight flyable P-30 models.  I have tried flying the same P-30 with different props.  So far I cannot discern an appreciable difference in flight duration.  There is one prop in my collection that may be legal which I have not tried. It is no longer available as far as I know.  

My friend Stan Buddenbohm flies his P-30 with the Czech (IGRA) prop and he is pretty much unbeatable in the P-30 event except perhaps occasionally by Don DeLoach. The plan for DeLoach's Polecat MK 10 P-30 appears to show the Peck prop.  I think these two fliers would both be pretty much unbeatable in the P-30 event regardless of which prop that they flew with.

Be aware that Stan and Don could both beat me flying your P-30 design at 45 grams.  

I might pull off a lucky victory if their models flew into a downdraft.

Have fun Kevin.


 25 
 on: Today at 02:02:26 PM 
Started by Kevin M - Last post by Kevin M
Indoorflyer, I'm using aliphatic, trying to be frugal with it by applying with a cocktail stick and wiping away any excess.

Derek, thanks, I'll check their website.

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